EXPERIMENTAL OBSERVATIONS OF UPSTREAM BOILING BURNOUT

Technical Report · Thu Nov 01 04:00:00 EST 1962

OSTI ID:4707129

Waters, E D; Anderson, J K; Thorne, W L; Batch, J M

Boiling burnout conditions are generally postulated and observed to occur at the outlet end of unlformly heated test sections. However, during experiments with a 12-ft-long x 0.44-in.-ID test section, boiling burnout conditions were sometimes observed to begin at various locations upstream from the test section outlet. Upstream burnout was observed at mass velocities of 5 x 10/sup 6/ lb/hr-ft/sup 2/ and higher but not at lower masg velocities. In some experiments the hent flux was purposely increased beyond the initial detection of boiling burnout (film boiling), allowing the condition to spread along the test section. Similar results were obtained for both vertical and horizontal positioning with a system pressure of l500 psig. The experiments show the necessity of installing burnout detectors along the entire length of the test section. The experiments also show the need for a hydrodynamic model of boiling burnout which would allow prediction of upstream burnout conditions. (auth)

• Research Organization: General Electric Co. Hanford Atomic Products Operation, Richland, Wash.
• DOE Contract Number: AT(45-1)-1350
• NSA Number: NSA-17-010794
• OSTI ID: 4707129
• Report Number(s): HW-73902(Rev.)
• Country of Publication: United States
• Language: English

Related Subjects

BOILING
BURNOUT
CONFIGURATION
DETECTION
ENGINEERING AND EQUIPMENT
FILMS
FLOW MODELS
FLUID FLOW
HEATING
HYDRODYNAMICS
LABORATORY EQUIPMENT
MASS
MATHEMATICS
PRESSURE
STANDARDS
VELOCITY